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One-pot synthesis of various xanthene derivatives using ionic liquid1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient and reusable catalyst under solvent-free conditions 被引量:4
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作者 Farhad Shirini Asieh Yahyazadeh kamal mohammadi 《Chinese Chemical Letters》 SCIE CAS CSCD 2014年第2期341-347,共7页
In this study, 1,3-disulfonic acid imidazolium hydrogen sulfate (DSIMHS) is used as an efficient and reusable ionic liquid for the green, mild, and efficient synthesis of xanthenes under solvent-free conditions. Sim... In this study, 1,3-disulfonic acid imidazolium hydrogen sulfate (DSIMHS) is used as an efficient and reusable ionic liquid for the green, mild, and efficient synthesis of xanthenes under solvent-free conditions. Simple and easy work-up, low cost, green process, short reaction times and excellent yields of the products are the advantages of this procedure. Further, the catalyst can be recycled and reused at least for four times without a noticeably decrease in its catalytic activity. 展开更多
关键词 Xanthene derivatives One-pot reaction 1 3-Disulfonic acid imidazolium hydrogensulfate Ionic liquid Solvent-free conditions
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